Faceting Design Diagram: 9 By – Reflector – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

9 By – Reflector (CHECK11.JRG)2.15 carat Amethyst
By Jeff R. Graham
Copyright 2001
93.1% Light Return
Angles for R.I. = 1.54
17 facets + 4 facets on girdle = 21
2-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.304 T/L = 0.304
P/W = 0.435 C/W = 0.262
H/W = (P+C)/W+0.02 = 0.716P/H = 0.607 C/H = 0.365
Vol./W^3 = 0.341

Addition # 6 – This is a very simple, fast design to cut. It works well for earrings in about any type of material.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.